Objects in the image:
category: person
category: tennis racket
category: bench
category: person
category: person
category: bench
category: tennis racket
category: person
category: backpack
category: person
category: person
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: is it a racket?
a: No
q: is it a sign?
a: No
q: is it covered in a bag?
a: No
q: is it the fence?
a: No
q: is it in the front of the photo?
a: No
q: is it on the stands?
a: No
q: is they guy in blue holding it?
a: No
q: is it behind the scoreboard?
a: No
q: is it small?
a: No
q: Is it the Olympus thng?
a: No
q: is it the stairs?
a: Yes